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NEET Practice Questions (MCQs) with Answers & Solutions

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On which factor adsorption of gas on solid adsorbtion depend ?

A. On temperature B. On pressure of gas C. On nature of adsorbent D. All the given

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If $H_2,CH_4,CO_2 and NH_3 $ gases are adsorbed by 1 gram charcol at 290 k temperature than deceasing order of their volume is

A. $ H_2 \gt CH_4 \gt CO_2 \gt NH_3 $ B. $ CO_2 \gt NH_3 \gt H_2 \gt CH_4 $ C. $ NH_3 \gt CO_2 \gt CH_4 \gt H_2 $ D. $ CH_4 \gt CO_2 \gt NH_3 \gt H_2 $

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Which gaseous molecule has highest value of physical adsorption enthalpy ?

A. $ H_2 $ B. $ N_2 $ C. $ H_2 O $ D. He

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How magnitude of adsorption gas is expressed ?

A. $ { m \over x} $ B. $ m . \triangle x $ C. $ { x \over m } $ D. x + m

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Which is Freundlich adsorption isotherm equation ?

A. $ { m \over x} \alpha p ^ {1 / n} $ B. $ { m \over x} \alpha p ^n $ C. $ { x \over m } \alpha p ^ {1 / n} $ D. none of these

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What will be the value of slope after drawing graph of $ log { x \over m } \rightarrow log p $ in Freundlich adsorption isotherm?

A. 1 / p B. 1 / n C. 1 / a D. - k

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What will be the intercept in a graph of Freundlich adsorption isotherm ?

A.

k

B.

log k

C.

1/ a

D.

1 / n

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Which of the following is not true regarding to Freudlich adsorption isotherm ?

A. This isotherm is applicable in certain limit of pressure B. Constant k and n change with temperature C. It shows deviation at low pressure D. Freundlich isotherm is empirical, there is no theoritical proof of it.

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If the value of $ {1 \over n} $ becomes zero in Freundich adsorption isotherm then adsorption is independent to

A. pressure B. temperature C. quantity D. 1 & 2

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If the value of $ { 1 \over n} $ is 1 in Freundlich adsorption isotherm then $ { x \over m} $ =

A. k/p B. kp C. k D. none of these

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